google has drive which is super easy to use.. just attach like you would an email and then it will say its too large and put in on drive for you then when you send it, it will ask you to allow the people you email it to access and just click accept and it will work just like email.

Side Note: Roshen Perera is just advertising for some crappy thing you have to pay for dont listen to him.

You can shrink the size of your MP4 files by using AppGeeker video converter, it has options to manually set the file size to fit your need.

However, please keep in mind that the smaller the file, the greater the loss of quality. I dont know what is size of your original mp4 files, you may consider split the file into some small parts to email (AppGeeker also handle that stuff).

As for uploading MP4 files into YouTube, you can directly do that on your computer with interrupt. But it would be better to convert them to a .flv file extension (the mostly used format for distributing videos online) that YouTube accepts well.

Hello,
I am late but focuses on sharing.
1. Reduce Video Resolution
Usually, users use the GoPro to shoot video with 4K resolution, and the output of 1080P is enough to cope with the demand. In the Settings window, you are allowed to change video resolution. Take the resolution of 1920x1080 as the output resolution, and then start the GoPro 4K to 1080P conversion.

2. Lower Video Bit Rate
As we know, the Bit Rate of video not only determines the quality of the video, but also the file volume is proportional to the Bit Rate, so we can lower the Bit Rate to compress GoPro videos. Open the Settings window and customize the Bit Rate.

3. Adjust Frame Rate
If you shoot video with a Frame Rate of 60 fps or higher, you can adjust it to 30 fps in the Settings window.

Just to piggy back off of others here, for most video files that come off of a GoPro or smartphone you don't need a 3rd party conversion software. The only exception we've found to that are videos shot with a GoPro in 4k at 60fps or 1080 at 240fps. They use a cinematic codec for those videos which most computers can understand but not really edit well.

We'd also suggest not shrinking the file size using one of those apps as it usually loses resolution. The best way to send videos is through Google Drive or Dropbox. That way the file comes through at full resolution and you don't have to mess with any file sizes.

Lastly, as others have mentioned, YouTube accepts MP4 videos. All of our videos are saved as .mp4 and they all work just fine. GoPro has a free editing tool available for download so if you're feeling creative give it a try. It's pretty much a standard video editing software so even if your footage doesn't come from a GoPro it can still be edited. https://www.google.com/url?sa=t&rct=...Muy8AZKdLxqG5W